<template>
    <!-- 表单 -->
    <el-form inline="true"> 
        <!-- ref="formModel" :model="form" -->
      <el-form-item label="题目难度" >
        <selector v-model="params.difficulty" placeholder="请选择题目难度" style="width: 200px;"></selector>
      </el-form-item>
      <el-form-item label="题目名称">
        <el-input v-model="params.title" placeholder="请您输入要搜索的题目标题" style="" />
      </el-form-item>
      <el-form-item>
        <el-button  plain @click="onSearch">搜索</el-button>
        <el-button  plain type="info" @click="onReset">重置</el-button>
        <el-button  plain type="primary" :icon="Plus" @click="onAddQuestion" >添加题目</el-button>
      </el-form-item>
    </el-form>
    <!-- 表格 -->
    <el-table height="526px" :data="questionList" >
        <!-- v-loading="loading" class="el-table " -->
      <el-table-column prop="questionId" width="180px" label="题目id" />
      <el-table-column prop="title" label="题目标题" :show-overflow-tooltip="true" />
      <el-table-column prop="difficulty" label="题目难度" width="90px">
        <template #default="{ row }">
          <div v-if="row.difficulty === 1" style="color:#3EC8FF;">简单</div>
          <div v-if="row.difficulty === 2" style="color:#FE7909;">中等</div>
          <div v-if="row.difficulty === 3" style="color:#FD4C40;">困难</div>
        </template>
      </el-table-column>
      <el-table-column prop="createName" label="创建人" width="140px" />
      <el-table-column prop="createTime" label="创建时间" width="180px" />
      <el-table-column label="操作" width="100px" fixed="right">
        <template #default="{ row }">
          <el-button class="red" type="text" @click="onEdit(row.questionId)">编辑
          </el-button>
          <el-button type="text" @click="onDelete(row.questionId)">删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>
    <!-- 分页区域 -->
    <el-pagination background small layout="total, sizes, prev, pager, next, jumper" 
        :page-sizes="[1, 2, 5, 10, 15, 20]" :total=total 
        v-model:current-page="params.pageNum" v-model:page-size="params.pageSize"
        @size-change="handleSizeChange" @current-change="handleCurrentChange" />
    
    <question-drawer 
      ref="questionDrawerRef" @success="onSuccess()" >
    </question-drawer>
</template>

<script setup>
    import { ref } from "vue"
    import Selector from "@/components/QuestionSelector.vue"
    import { reactive } from "vue";
    import { Plus } from "@element-plus/icons-vue"
    import { delQuestionService, getQuestionDetailService, getQuestionListService } from "@/apis/question";
    import QuestionDrawer from "@/components/QuestionDrawer.vue";
import { ElMessage } from "element-plus";

    const params = reactive({
        pageNum: 1,
        pageSize: 10,
        difficulty: '',
        title: '',
    })

    const questionList = ref([])
    const total = ref(0);

    async function getQuestionList(){
        const result = await getQuestionListService(params)
        console.log(result);
        questionList.value = result.rows
        total.value = result.total;
    }
    
    function handleSizeChange(newSize){
        // params.pageSize = newSize

        params.pageNum = 1;
        getQuestionList();
    }

    function handleCurrentChange(newPage){
        // params.pageNum = newPage
        getQuestionList();
    }
    getQuestionList();

    function onSearch(){
      getQuestionList();
      params.pageNum = 1;
    }

    function onReset(){
      params.pageNum = 1,
      params.pageSize = 10,
      params.difficulty = '',
      params.title = '',
      getQuestionList()
    }

    const questionDrawerRef = ref()
    function onAddQuestion(){
      questionDrawerRef.value.open()
    }

    function onSuccess(service){
      if(service === 'add'){
        params.pageNum = 1
      }
      getQuestionList()
    }

    async function onEdit(questionId) {
      questionDrawerRef.value.open(questionId);
    }

    async function onDelete(questionId){
      await delQuestionService(questionId);
      ElMessage.success("删除成功")
      params.pageNum = 1
      getQuestionList()
    }
</script>